CN1567657A - Electric connector having electromagnetic wave guiding function - Google Patents
Electric connector having electromagnetic wave guiding function Download PDFInfo
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- CN1567657A CN1567657A CN 03145224 CN03145224A CN1567657A CN 1567657 A CN1567657 A CN 1567657A CN 03145224 CN03145224 CN 03145224 CN 03145224 A CN03145224 A CN 03145224A CN 1567657 A CN1567657 A CN 1567657A
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- electric connector
- terminal
- electromagnetic wave
- conductive sheet
- insulation shell
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Abstract
The invention is a connector with a function of guiding electromagnetic wave, arranged on a circuit board for being socketed by an electric component, and containing an insulating case and many signal terminals held in the case as well as a grounding terminal, each signal terminal has a socket end situated in the case for the electric component to electrically contact and a joint end connected to the circuit board, there is a conducting plate for the signal thermals to pass through and the grounding terminal to connect with, arranged between the joint end and the socket end in the case, it makes the conducting plate as a nearest grounding conductor for the electromagnetic wave generated as the signal terminals transmit signals so as to ground the electromagnetic wave to prevent the diffusion of the electromagnetic wave.
Description
(1) technical field
The relevant a kind of electric connector of the present invention is meant especially that a kind of confession one electronic component engages and transmits the electric connector of signal with a circuit board.
(2) background technology
Concerning in the electronic equipment now for replace or electronic component that extended function is used, as the memory module of computer, interface card or the like, in order to have the circuit board of electronic circuit to reach the purpose of electric connection, all can utilize the electric connector that is arranged on the circuit board to use as electrically connecting with electronic component with a design.
As Fig. 1, with employed memory module 7 electronic components such as grade of desktop computer is example, for with host computer in circuit board 8 form and electrically connect, the electric connector 9 of pegging graft for memory module 7 must be set on circuit board 8 accordingly, electric connector 9 comprises an insulation shell 91 and a plurality of conducting terminal 92 that is placed in the insulation shell 91, insulation shell 91 is formed with a plug surface 911 and that is positioned at the top and is positioned at the composition surface 912 that circuit board 8 is pressed close in the below, on plug surface 911, then be provided with a slot 913 for memory module 7 grafting, and conducting terminal 92 has a contact jaw and a welding ends (figure does not show), contact jaw is electrical contact 71 (industry the is referred to as golden finger) contact that is positioned in the middle of the slot 913 in order to corresponding with memory module 7, welding ends is then protruding expose composition surface 912 in order to electronic circuit (figure does not show) welding of circuit board 8, the direction that makes the memory module 7 of rectangular sheet be stood on circuit board 8 surfaces is inserted in the middle of the slot 913 of electric connector 9.
And the memory capacity of memory module 7 is more and more big, owing to conducting terminals 92 in the electric connector 9 have under the condition that the certain specification limited in number makes that width can't increase usually, the memory chip particle of memory module 7 increases or the increase of wiring certainly will cause its height with respect to circuit board 8 surfaces to increase, so after memory module 7 was plugged to electric connector 9, host computer must be reserved this accommodation space and cause whole height (thickness) therefore to increase.This point is stressed compact designer trends with general electronic products and is run in the opposite direction, and especially the increase of integral thickness causes volume to increase, and will influence the acceptance of consumer on the market.
As Fig. 2, consider based on above-mentioned, the design that memory module 7 is pegged graft with electric connector 9 with the direction that is parallel to circuit board 8 surfaces is just arranged, be that the insulation shell 91 of electric connector 9 is formed as figure side-looking section is L shaped kenel on the way, make the plug surface 911 of insulation shell 91 be mutually plumbness with composition surface 912, accordingly, conducting terminal 92 also is bent into L shaped and is placed in the insulation shell 91, like this, memory module 7 can be inserted into the direction that is parallel to circuit board 8 surfaces in the slot 913 of electric connector 9, highly is little characteristics by memory module 7 thickness far beyond it, can therefore significantly reduce memory module 7 height with respect to circuit board 8 surfaces after assembling, and in the permissible scope of product thickness, adopt as small one and large one two L-shaped electric connectors 9 of figure, 9 ' the mode that stacks mutually, more can peg graft for two memory modules 7 simultaneously, can reach in the space utilization the more purpose of densification in the mode of level.
But, the clock pulse of digital electronic component running now improves constantly down, the signal concussion frequency that is transmitted is all quite high, and the characteristic of high-frequency signal must have good ground connection (Ground), so distinguish in the conducting terminal 92 signal terminal and earth terminal arranged, the corresponding earth terminal of configuration mode possibility one signal terminal also might the common earth terminal that uses of a plurality of signal terminals.But when signal terminal transmits high-frequency signal, each signal terminal will exhale electromagnetic wave as antenna, outwards disperse in electric connector 9 for fear of electromagnetic wave and disturb the running of other electronic components, existing all electric connectors 9 that transmit high-frequency signals for the way that prevents Electromagnetic Interference nothing more than two aspects, be that conducting terminal 92 length are shortened as best one can on the one hand, and all signal terminals are more closely arranged, purpose makes signal terminal can more make electromagnetic wave guide ground connection by grounded circuit (reference ground) induction of circuit board 8 near circuit board 8, then be the metal cap body 93 of utilizing connecting circuit plate 8 grounded circuits on the other hand, the insulation shell 91 of electric connector 9 is coated in large area, and the mode of utilization " containing " makes by metal cap body 93 inductive groundings in the unlikely housing 91 that insulate certainly of electromagnetic wave outwards disperses.
With reference to figure 2,, in the test of Electromagnetic Interference (EMI), can't pass through again though aforementioned electric connector 9 adopts the L shaped way that stacks mutually can reach the purpose of effectively utilizing the space.Trace it to its cause and be, electric connector 9 ' below being positioned at perhaps can utilize metal cap body and electromagnetic intensity is controlled at below the scope that does not take place to disturb, still be that mainly its conducting terminal length is short, and it is still near apart from circuit board 8, be that the electromagnetic wave that produces of conducting terminal and so-called grounded circuit (reference ground) distance is near, so can respond to and reduce the degree that it is dispersed by reference ground.But in fact the electric connector 9 that is positioned at the top has distance up to 1.5 centimeters because of insulation shell 91 end faces apart from circuit board 8 surfaces, so on the problem of Electromagnetic Interference, will there be different situations to take place, one is that conducting terminal 92 length increase, two is that conducting terminal 92 is far away apart from circuit board 8 (reference ground), by contrast, the antenna effect of each conducting terminal 92 is obvious, the problem that makes electromagnetic wave disperse is serious, even also electromagnetic intensity can't be reduced to below the certain standard and utilize metal cap body 93 to coat, if still consider down as the unique means of this problem of solution with the covering property of reinforced metal lid 93, one is coated with its difficulty fully, as long as metal cap body 93 1 has the slit, electromagnetic wave promptly leaks thus, two come cost of manufacture significantly to improve, but resulting effect is limited, causes to incur a considerable or great expense and effect is clear, and does not meet the cost requirement in the making.Various reasons all makes utilizes metal cap body 93 coated insulation housings 91 can not effectively solve the problem of aforementioned electromagnetic wave interference with the way of containing electromagnetic wave and dispersing traditionally.
(3) summary of the invention
Therefore, the purpose of this invention is to provide a kind of mode of utilizing guiding but not containing and reach the electric connector that the inhibition electromagnetic wave is dispersed,
Electric connector with electromagnetic wave guiding function of the present invention, be arranged on the circuit board and peg graft for an electronic component, electric connector comprises an insulation shell and is placed in insulation shell interior a plurality of signal terminals and an earth terminal, each signal terminal has one and is positioned at insulation shell is electrically connected to circuit board with the inserted terminal and of the electrical contact of electronic component abutting end, make in the insulation shell and in the middle of the abutting end of this signal terminal and inserted terminal, to be provided with a conductive sheet of passing and electrically connecting with earth terminal for signal terminal, the nearest earthing conductor that is generated electromagnetic waves when making conductive sheet transmit signal as signal terminal prevents that to guide ground connection immediately with electromagnetic wave it from dispersing.
Effect of the present invention is to utilize conductive sheet to change the position of grounded circuit (reference ground) and can effectively guides the absorption electromagnetic wave and disperse outwardly to avoid it.
(4) description of drawings
Fig. 1 is a stereogram, illustrates that a known memory module is plugged in the kenel of an electric connector in upright mode;
Fig. 2 is a side cross-sectional schematic, and the electric connector kenel of the known module of combined memory in a horizontal manner is described; And
Fig. 3 is the side cross-sectional schematic of a preferred embodiment of the present invention.
(5) embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of a following cooperation preferred embodiment with reference to the accompanying drawings, can clearly understand.
Consult Fig. 3, a preferred embodiment of electric connector 1 of the present invention still is configured to example with the above-mentioned known L-shaped electric connector 1 that stacks mutually and be positioned at the top.Electric connector 1 comprises the L-shaped insulation shell 11 of a side-looking section and a plurality of ccontaining conducting terminal that is positioned in the insulation shell 11.
A plurality of conducting terminals can be divided into a plurality of signal terminals 12 and a plurality of earth terminal 13, for ease of explanation, only draw single signal terminal 12 and single earth terminal 13 among the figure, and signal terminal 12 has the body 121 of a L-shaped extension, one inserted terminal 122 and that is formed at body 121 1 ends and is positioned at slot 113 is formed at the other end and the protruding composition surface 112 outer abutting ends 123 that weld with circuit board 2 that expose of body 121, in the same manner, earth terminal 13 also has a L shaped body 131, one inserted terminal 132 and that is formed at body 131 1 ends and is positioned at slot 113 is formed at the other end and the protruding composition surface 112 outer abutting ends 133 that weld with circuit board 2 that expose of body 131, in addition, earth terminal 13 also forms interference parts 134 at body 131 in the middle of inserted terminal 132 and abutting end 133, in this example, interference part 134 is one to protrude from body 131 and be lepidiod tab.
With the main difference of known electric connector 1 structure be in, be provided with a conductive sheet 14 in the middle of the abutting end 122,132 of insulation shell 11 inherent signal terminals 12 and earth terminal 13 and the inserted terminal 123,133, but the width of conductive sheet 14 coordinated insulation housings 11 (figure do not show) and make sheet and laterally be positioned in the insulation shell 11 with conductors such as metal materials, make conductive sheet 14 parallel interval ground be positioned at distance certain on the circuit board 2, the number of this distance is then looked the dense degree of insulation shell 11 sizes and signal terminal 12 and is done suitable adjustment.Wherein, conductive sheet 14 is provided with a plurality of first perforation 141 respectively in the position of respective signal terminal 12, bore a hole 142 and be provided with a plurality of second in the position of corresponding earth terminal 13, first perforation, 141 bodies 121 that can hold signal terminal 12 pass but are not in contact with one another, and second perforation, 142 bodies 131 that also can hold earth terminal 13 pass through, but can be connected on second perforation 142 conductive sheet 14 materials on every side by interference part 134, make conductive sheet 14 to produce and electrically connect with earth terminal 13.Though and earth terminal 13 is connected in second perforation 142 conductive sheet 14 formation electric connections on every side with interference part 134 in this example, but mainly be to be to be connected with earth terminal 13 and the effect of ground connection arranged in explanation conductive sheet 14, the kenel of in fact also non-limiting interference part 134, so other can make conductive sheet 14 and earth terminal 13 produce electrical contacting structure or way also is feasible, in addition, all must electrically connect with conductive sheet 14 though seem a plurality of earth terminals 13 in the explanation, right in fact conductive sheet 14 only needs to form the electrical effect that can have ground connection that contacts with at least one earth terminal 13.
During application, utilize earth terminal 13 to form the effect of ground connection by conductive sheet 14, equal to provide than circuit board 2 position of the grounded circuit of approach signal terminal 12 (reference ground) more, when so signal terminal 12 generates electromagnetic waves transmitting high-frequency signal, conductive sheet 14 will become the nearest earthing conductor of electromagnetic wave, electromagnetic wave can be guided ground connection and avoided its antenna effect in the shortest time, nature can effectively reduce the probability that electromagnetic wave outside is dispersed, and show according to actual test result, electric connector 1 electromagnetic intensity of no conductive sheet 14 structures can be up to 11dB, electromagnetic intensity with electric connector 1 of conductive sheet 14 then can decline to a great extent to 6dB, effect is more showing to contain the mode that electromagnetic wave disperses than utilizing metal material coated insulation housing 11 outer surfaces in the tradition, simultaneously in structure and make also comparatively simple.
In addition, the back side of insulation shell 11 also can be further combined with large-area conductive cover 15, and conductive cover 15 and conductive sheet 14 are electrically connected, by 15 pairs of shielding electromagnetic waves effects of conductive cover, can more strengthen the protection effect that 1 pair of electromagnetic wave of whole electric connector is dispersed.
Conclude above-mentioned, electric connector of the present invention, by the conductive sheet that is arranged in the insulation shell, can promote the position of grounded circuit (reference ground), and replace traditionally " containing " electromagnetic way by " guiding " electromagnetic mode, reach obvious and improve the problem that electric connector is dispersed for electromagnetic wave, so can reach purpose of the present invention really.Though explain with the L-shaped electric connector of section again, therefore do not limit electric connector kenel of the invention process, other general electric connectors also can adopt identical design.
But above-described only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, every simple equivalent of doing according to the present patent application claim and description changes and replaces, and all should still belong in the scope that patent of the present invention contains.
Claims (7)
1. electric connector with electromagnetic wave guiding function, be arranged on the circuit board and peg graft for an electronic component, this electric connector comprises an insulation shell and is placed in this insulation shell interior a plurality of signal terminals and an earth terminal, respectively this signal terminal have one be positioned at this insulation shell for this electronic component electrically the inserted terminal and of contact be electrically connected to the abutting end of this circuit board, it is characterized in that:
In the middle of the abutting end of this signal terminal and inserted terminal, be provided with a conductive sheet of passing and electrically connecting with this earth terminal for this signal terminal in this insulation shell, the nearest earthing conductor that is generated electromagnetic waves when making this conductive sheet transmit signal as this signal terminal prevents that to guide ground connection immediately with electromagnetic wave it from dispersing.
2. according to the described electric connector of claim 1, it is characterized in that this conductive sheet has a plurality of to perforation that should signal terminal, makes this signal terminal not contact this conductive sheet by this perforation of correspondence respectively.
3. according to the described electric connector of claim 1, it is characterized in that, this conductive sheet has a pair of perforation that should earth terminal, this earth terminal then is provided with an interference part, makes this earth terminal pass this perforation back and is placed in this perforated edge and forms electric connection with this conductive sheet by this interference part.
4. according to the described electric connector of claim 3, it is characterized in that this earth terminal has one can be by the body of this correspondence perforation, and this interference part is one to protrude from the tab of this body.
5. according to the described electric connector of claim 1, it is characterized in that, this insulation shell has a plug surface that inserts for this electronic component and one and the approaching composition surface of this circuit board, on this plug surface and form a slot that inserts for this electronic component, make this plug surface be vertical with this composition surface, it is one L shaped to make that this insulation shell side view becomes, and the inserted terminal of this conducting terminal is positioned at this slot, and this abutting end then is revealed in outside this composition surface and engages with this circuit board.
6. according to the described electric connector of claim 1, it is characterized in that this insulation shell outer surface also is covered with the conductive cover that an electromagnetic wave shielding is dispersed.
7. according to the described electric connector of claim 6, it is characterized in that this conductive cover is to electrically connect with this conductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031452248A CN1295818C (en) | 2003-06-24 | 2003-06-24 | Electric connector having electromagnetic wave guiding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031452248A CN1295818C (en) | 2003-06-24 | 2003-06-24 | Electric connector having electromagnetic wave guiding function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1567657A true CN1567657A (en) | 2005-01-19 |
| CN1295818C CN1295818C (en) | 2007-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031452248A Expired - Fee Related CN1295818C (en) | 2003-06-24 | 2003-06-24 | Electric connector having electromagnetic wave guiding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1295818C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972730A (en) * | 2013-02-02 | 2014-08-06 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
| CN106450822A (en) * | 2016-11-25 | 2017-02-22 | 中国科学院上海技术物理研究所 | Miniature magnetic latching relay ground structure for geosynchronous orbit |
| CN109411919A (en) * | 2018-11-29 | 2019-03-01 | 苏州中兴联精密工业有限公司 | Electric connector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193207A (en) * | 1997-03-12 | 1998-09-16 | 鸿海精密工业股份有限公司 | Electric clamping connector |
| JP4081876B2 (en) * | 1998-09-09 | 2008-04-30 | 松下電器産業株式会社 | Electronic device and extension unit having guide mechanism |
| JP4581281B2 (en) * | 2001-03-30 | 2010-11-17 | ミツミ電機株式会社 | connector |
| JP3954832B2 (en) * | 2001-10-17 | 2007-08-08 | ヒロセ電機株式会社 | Optical connector shield structure |
| CN2540050Y (en) * | 2002-04-22 | 2003-03-12 | 崑义实业股份有限公司 | Antimagnetic interference structure of connector |
-
2003
- 2003-06-24 CN CNB031452248A patent/CN1295818C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972730A (en) * | 2013-02-02 | 2014-08-06 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
| CN106450822A (en) * | 2016-11-25 | 2017-02-22 | 中国科学院上海技术物理研究所 | Miniature magnetic latching relay ground structure for geosynchronous orbit |
| CN106450822B (en) * | 2016-11-25 | 2018-10-19 | 中国科学院上海技术物理研究所 | A kind of miniature magnetic latching relay ground structure of geostationary orbit |
| CN109411919A (en) * | 2018-11-29 | 2019-03-01 | 苏州中兴联精密工业有限公司 | Electric connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1295818C (en) | 2007-01-17 |
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